OELoadOpenEyeMonomerSet

Attention

This is a preliminary API and may be improved based on user feedback. It is currently available in C++ and Python.

OELoadOpenEyeMonomerSet(monomers: OEMonomerSet) -> bool

Loads the built-in OpenEye monomer set containing more than 260 diverse monomers that are common in macro-cyclic peptide projects. This monomer set defines four code-sets:

OpenEye - the primary code-set, the codes assigned to monomers follow naming conventions defined in [Ghiandoni-2026]
Standard - 20 standard amino-acids with universally accepted one-letter codes, such as C for cystine
PDB - monomer that also exists in PDB database with a three-letter code, such as CYS for cystine
ChEMBL - monomer that also exists in the monomer dictionary of CHEMBL36.

../../_images/dNMePhe.svg — **Example of monomer that occurs in different code-sets in the OpenEye monomer set**

Warning

The built-in OpenEye monomer set is intended primarily for testing, illustrating how OEChem handles diverse peptide structures during HELM parsing and generation, and providing a template for constructing private monomer sets.

Because this monomer set is subject to change, we strongly discourage our customers from relying on it in their production workflows. Monomers in this set may be added, removed, or modified between releases. Instead, users should define, validate, and maintain their own custom monomer set so they can control which monomers are included and adopt naming conventions that match their organizational standards.